The information you have provided is once again, not entirely correct.
Health insurance cards are given to the dependants too, by the employer. At no cost of the employer.
Deepening on the company policy, trips back home at the end of the year are financed by the company for all the family.
Yes, the cost of 2000 SAR for the dependant visa application is paid for by the spouse looking to sponsor. This is a government fee, which is paid directly.
It is not a fee that the company pockets.
Finally, yes a dependant cannot work. If they wanted to work, and have the necessary qualifications, then I'm
Sure they would come on their own work
Visa leading to Iqama.
Hope this clarifies things